1000025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 1421784

約数和(自身を除く): 421759

約数列:

[1, 5, 13, 17, 25, 65, 85, 181, 221, 325, 425, 905, 1105, 2353, 3077, 4525, 5525, 11765, 15385, 40001, 58825, 76925, 200005, 1000025]

約数ペア:

[(1, 1000025), (5, 200005), (13, 76925), (17, 58825), (25, 40001), (65, 15385), (85, 11765), (181, 5525), (221, 4525), (325, 3077), (425, 2353), (905, 1105)]